title: Electron microscopic analysis of the extra 16 SrRNA gene and its neighbourhood in chloroplast DNA from Euglena gracilis strain Z.
mesh_terms: D000818:Animals; D002736:Chloroplasts / Q000648:ultrastructure*; D004278:DNA, Superhelical / Q000032:analysis; D005056:Euglena gracilis / Q000235:genetics*; D008854:Microscopy, Electron; D009690:Nucleic Acid Conformation; D012335:RNA, Ribosomal / Q000235:genetics*
chemical_list: D004278:DNA, Superhelical; D012335:RNA, Ribosomal